Lagos: Uncertainty over whether Nigerian President Muhammadu Buhari will run for a second term in 2019 has set off an early race to succeed him in Africa’s most populous nation, according to a senior ruling party official.

Buhari, 74, stayed more than seven weeks in the UK to receive treatment for an undisclosed ailment, sparking concern about government paralysis and triggering speculation about the severity of his condition. He returned to Nigeria on March 10, but is expected to fly back to London for further care, his spokesman said last week, without specifying when he would depart.

“Because of the feeling that the president may not run for a second term, people are already gearing up,” Nasir Al Rufai, a senior official of the ruling All Progressives Congress and governor of the central state of Kaduna, said in an interview Monday in Johannesburg. “All of us are getting distracted by the coterie of ambitious presidential aspirants that are trying to kick-start the political process ahead of the normal timeline.”

A former military leader, Buhari in 2015 became the first politician to unseat an incumbent Nigerian leader in an election. Nearly halfway through his four-year term, he’s struggling to revive growth in an economy that’s been hit by a plunge in crude oil revenue and a severe shortage of foreign exchange. Nigeria’s elections commission announced last month that the next presidential will be held on February 16, 2019.

While Buhari hasn’t said whether he intends to run again, Al Rufai said that most ruling party members would like him to seek a second term.

“Many of us that campaigned vigorously for him in 2015 are hoping that his health will improve and stabilise and that he will run again in 2019,” he said. “We need the policy continuity and the stability in the political environment for the country to make progress.”